Laminar Flow Clean Bench Hood

Purair FLOW Series Laminar Flow Cabinets

The Purair FLOW Series laminar flow cabinets deliver vertical laminar flow with HEPA filtration to protect the interior work zone from particulate contamination. Designed for non-hazardous applications where user protection from biologicals or biohazardous byproducts is not required, these cabinets maintain ISO Class 5 air quality through gentle downward laminar flow throughout the interior workspace.

Available in three nominal widths—24", 36", and 48"—the FLOW Series cabinets feature the Air Science exclusive Multiplex HEPA Filtration technology to sustain a contamination-free environment. HEPA filtered air passes uniformly through the cabinet interior with airflow oriented to prevent introduction of airborne particulates during normal use.

Energy Efficiency

The single EC blower motor delivers exceptional energy efficiency with power consumption ranging from 37 to 115 watts depending on cabinet size. This ensures lower cost of ownership while maintaining consistent performance.

Typical Applications

• Mycology and Food Microbiology
• Plant and Mammalian Cell Culture
• Clinical Pharmacies and Hospitals
• Cleanrooms
• Semiconductor Assembly
• Pharmaceutical Production
• Aerospace Contamination Control
• Medical Device Assembly
• General Research Protocols

Primary Features

• Provides sterile work zone for aseptic techniques
• Air cleanliness meets ISO Class 5
• Energy saving LED lighting
• Vertical laminar flow with HEPA filtration
• Large front opening provides unrestricted access to the work zone
• 360 degree visibility with clear back and side panels
• Convenient rear-wall pass through ports for safe routing of instrument cords, cables, and leads
• Filter door lock prevents unauthorized removal or accidental exposure to saturated filters
• Stackable sections make cabinets highly portable and enable quick setup

Airflow and Filtration Performance

The Multiplex Filtration System consists of a pre-filter and main filter. Room air enters from the top of the cabinet through the disposable pre-filter where larger particles are trapped, increasing the service life of the main HEPA filter. Air is forced evenly across the HEPA filter to deliver a flow of pure air within the work zone.

Purair FLOW cabinets maintain an average airflow velocity of 0.30 m/s (60 fpm) at initial setpoint, measured 6" (150 mm) from the filter face. Purified air travels across the work zone to the work surface in a vertical downflow stream and then exits the work zone across the open cabinet front.

Filtration Components

Construction and Design

The cabinet frame and work surfaces are comprised of industrial components that are durable and chemically resistant with a microbial powder finish coating. The control panel includes an On/Off switch for simple operation, with a main On/Off switch for fan and lighting. Solid-state fan speed control with RFI filter maintains blower uniformity.

Compact LED cabinet lamps are located away from the laminar flow area. Wide knob filter clamps are conveniently located forward of the assembly, securing the filter to the plenum with even pressure to assure a tight seal and to simplify filter removal and replacement when required. The HEPA filters are easy to replace with no tools required.

Materials

• Finish (exterior): White epoxy-coated steel frame with white legs on cabinet sides
• Windows: Acrylic, transparent
• Blower: EC blower
• Pass Through Ports: Two, standard, knock-out
• Lighting: LED

Model Specifications

Weight Specifications

Available Options and Accessories

Standards and Compliance

Quality Management Systems

ISO 9001:2015

Electrical Safety

• UL-C-61010-1
• CAN/CSA C22.2 61010-1-12
• EN 61010-1:2010
• CE Mark

Environment

• ISO 14001:2015
• ENERGY STAR Partner